Compliance and Audit

In order to operate the market effectively, it's important that MOSL adheres to a number of rules and regulations, as well as ensuring that each trading party meet their obligations. All documentation can be found below - please note you will need to be logged in to view any external auditor documentation.

Market Audit: Trading Party

2024-2025

This audit focuses on assuring that tariff data uploaded in CMOS is appropriate and consistent with published tariffs.

Document Name Date Published Author File Download

Statement of Work

25 April 2024

MOSL

Download

2023-2024

This audit focuses on the skip codes used within the market and the processes surrounding their use

Document Name Date Published Author File Download

Statement of Work

13 October 2023

MOSL

Download

Findings

25 April 2024

MOSL

Download

This audit focuses on the processes surrounding the setting and maintenance of YVEs

Document Name Date Published Author File Download

Findings

8 April 2024

MOSL

Download

Statement of Work

19 July 2023

MOSL

Download

This audit focuses on wholesalers using the defer option within the Bilaterals hub and looks to assure the processes are being followed correctly

Document Name Date Published Author File Download

Final Findings

29 February 2024

MOSL

Download

Initial Findings

23 October 2023

MOSL

Download

Statement of Work

30 June 2023

MOSL

Download

This audit focuses on meter and site data completeness between a wholesaler's own system and the data held in CMOS

Document Name Date Published Author File Download

Final findings

12 October 2023

MOSL

Download

Initial Findings

24 February 2023

MOSL

Download

Statement of Work 1 July 2022 MOSL Download

2017-2022

Here you will find all previous published documentation relating to earlier trading party audits

Audit Name Audit Description Year of Audit Author Statement of Work Initial Findings Final Report

Non-Market Meter Performance Audit

This audit focuses on wholesalers performing poorly against the Non-Market Meter performance tasks

2022-2023

MOSL

Published 16 January 2023

Download

Published 24 January 2023

Download

Published 26 April 2023

Download

Transfer Behaviours Audit

This audit focuses on the processes surrounding the transfer of customers

2022-2023

MOSL

Published 5 December 2022

Download

Published 12 December 2022

Download

Published 26 April 2023

Download

Retailer Data Completeness Audit

This audit focuses on meter reading and vacancy status completness between a retailer's own billing system and the data held in CMOS

2022-2023

PwC and MOSL

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Published 11 January 2023

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Published 27 March 2023

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Retailer Data Completeness Audit

This audit focuses on meter reading and vacancy status completeness between a retailer's own billing system and the data held in CMOS

2022-2023

PwC

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Published 26 September 2022

Login to download

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Deferred payments review - Part 2 This audit reviews key inputs of three Retailer’s October 2020 Deferred Payments submission 2020-2021 PwC

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Download
Deferred payments review - Part 1 This audit reviews key inputs of three Retailer’s May, June and July 2020 Deferred Payments submission 2020-2021 PwC

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Download
COVID-19 Temporary Vacants This audit covers the Assurance Statements submitted by five retailers, reviewing the processes followed by each retailer to identify those premises that they had marked as temporary vacant based on key criteria outlined in CPW091. 2020-2021 PwC

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Download
Vacants Review This report covers a review of Vacants in the market, targeting the core 'SPID lifecycle' processes operating within companies, and bilaterally. Two wholesaler - retailer pairings were selected. 2019-2020 PwC

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Download
OPS Review Q2 This audit focuses on three wholesalers and reviews their performance against the OPS of most significance to market operations, and the frequency of tasks performed. 2019-2020 PwC

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Download
OPS Review Q1 This audit focuses on three wholesalers and reviews their performance against the OPS of most significance to market operations, and the frequency of tasks performed. 2019-2020 PwC

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Download
PwC 2019/20 Market Audit approach This document outlines PwCs approach to the 2019/20 market audit 2019-2020 PwC

Download

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NHH Market Audit Report This data led audit focuses on a variety of areas considered to be of higher risk to the market including, the meter reading processes, master data quality, switching, and CMOS configuration and alignment. 2018-2019 PwC

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Download
NHH Market Audit Report This audit focuses on challenging the trading parties on their ability to comply with the WRC in higher risk areas, and identifying key areas of market improvement. 2017-2018 PwC

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Download

Market Audit: Market Operator

Each year, external auditors test and report on MOSLs compliance to its obligations as set out within the Market Codes. These reports can be found below.

Document Name Year of Audit Author File Download
Review of MOSL Compliance 2018-2019 PwC Download
Interim review of MOSL Compliance 2019-2020 PwC Download
Review of MOSL Compliance 2019-2020 PwC Download
Review of MOSL Compliance 2020-2021 PwC Download
Review of MOSL Compliance 2021-2022 PwC Download

Review of MOSL Compliance

2022-2023

PwC

Download

Review of MOSL Compliance

2023-2024

PwC

Download

MOSL Audit: Quarterly Internal

MOSL provide quarterly reports to the Market Performance Committee (MPC) on how it is meeting its current obligations. These reports can be found below.

Document Name Quarter Reported File Download

Market Operator Compliance Report

2023-2024 Q2

Download

Market Operator Compliance Report

2023-2024 Q1

Download

Market Operator Compliance Report

2022-2023 Q4

Download

Market Operator Compliance Report

2022-2023 Q3

Download

Market Operator Compliance Report

2022-2023 Q2

Download

Market Operator Compliance Report

2022-2023 Q1

Download

Market Operator Compliance Report

2021-2022 Q4

Download

Market Operator Compliance Report 2020-2021 Q3 Download
Market Operator Compliance Report 2020-2021 Q2 Download
Market Operator Compliance Report 2020-2021 Q1 Download
Market Operator Compliance Report 2019-2020 Q4 Download
Market Operator Compliance Report 2019-2020 Q3 Download
Market Operator Compliance Report 2019-2020 Q2 Download
Market Operator Compliance Report 2019-2020 Q1 Download
Market Operator Compliance Report 2018-2019 Q4 Download
Market Operator Compliance Report 2018-2019 Q3 Download
Market Operator Compliance Report 2018-2019 Q2 Download
Market Operator Compliance Report 2018-2019 Q1 Download
Market Operator Compliance Report 2017-2018 Q4 Download

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